I wouldn't say it's extremely easy. You may even have to either have someone lift up on the car (the side that you're trying to change) to stretch out the springs a bit or even put a jack under the car if just the person lifting can't give enough clearance to get the spring compressor inside.
Make sure you take your time though, those springs are really strong and have the potential to do much harm to the human body.
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351W-powered 1979 Ford Mustang notchback
Stock 5.8L under 4" cowl, C4 w/ shift kit
Holley 750 cfm, Edelbrock Performer RPM intake
1 5/8" MAC shorty headers, Al driveshaft
2.5" Off road H-pipe, 2-chamber Flowmasters
Front: 225/60/15, Rear: 255/60/15 Eagle GT II
Weld wheels (15x6;15x8), 8.8" Rear w/ 3.55s
14 x 4” K&N air filter (getting the Xtreme setup someday)
"Red, thou art my companion. Hasten now your quickened metamorphosis to Green that I may conquer all who dare abide there beside me. May they be left thither behind burnt black." ---Fox Body